<div *ngIf="hero">
<h2>{{hero.name}} details!</h2>
<div>
  <label>id: </label>{{hero.id}}</div>
<div>
  <label>name: </label>
  <input [(ngModel)]="hero.name" placeholder="name" />
</div>
<button (click)="goBack()">Back</button>
<button (click)="save()">Save</button>
</div>
